BS 8446:2020 pdf download – Installation and maintenance of open- flued, non-domestic gas-fired laundry appliances — Specification
Where a laundry appliance’s data plate carries the letters CATI or CAT ll followed by gas type
designations,(i.e.2H, 2P, 2B),then the laundry appliance may be used for different types of gases whenadjusted to do so.
In such a case, the installer should verify that the laundry appliance is correctly adjusted.
Any new laundry appliance selected for installation shall be one that has been marked by the
manufacturer as being suitable for the gas with which it is to be used. It shall also be suitable for itsintended location (see Clause 7).
The installer shall verify that any new laundry appliance selected for installation is marked with anacceptable certification scheme.
6.2Used laundry appliances
The original packaging is generally not available with used laundry appliances. These might or mightnot carry the CE mark. Where the manufacturer’s instructions are not available, these should beobtained from the manufacturer or their agent before installation of the laundry appliance begins.Where the laundry appliance carries the CE mark, the appliance data plate is likely to carry the
information on type of gas and appliance inlet pressure. In such a case, the installation should proceedin accordance with the laundry appliance manufacturer’s instructions.
Where the laundry appliance does not carry a CE mark, other criteria could apply, such as surface
temperatures, appliance stability, ventilation, etc, and these should be taken into account in the methodof installation. The installer should satisfy themselves that the laundry appliance is safe in construction
and condition, and can be used without constituting a danger.
A used laundry appliance needs to be sold with a set of manufacturer’s instructions for safe installationto be practicable.
Only used laundry appliances with which the manufacturers’instructions are supplied or areotherwise available shall be selected for installation.
7Location of laundry appliances
7.1General installation
7.1.1 A laundry appliance shall be installed in accordance with the manufacturer’s instructions.
7.1.2 A laundry appliance shall not be installed in a room containing a bath or shower.
7.1.3 Where a laundry appliance is to be installed in the same location as a dry cleaner, it shall be separated
by a minimum distance of 5 m or installed in a separate room.Make-up air shall not come from
the area of the dry cleaner. Make-up air shall be provided separately for both a dry cleaner and alaundry appliance.
NOTE The separation of make-up air is intended to prevent the production of toxic gas from the interaction of thedry-cleaning chemicals with the burner flame within the laundry appliance.The flame picture should be confirmedas intended with the dry cleaner operating.
7.1.4 A laundry appliance for use with 3rd family gases shall not be installed in a room or internal space
below ground level, e.g. a basement or a cellar.
NOTE This does not preclude the installation of such appliances in rooms or internal spaces which are belowground level with respect to one side of the building but open to ground level on the opposite side.
7.2Siting of laundry appliances
7.2.1 Siting shall be in accordance with the manufacturer’s instructions, taking account of the intended
user’s needs.
NOTEAspects to consider with regard to siting are as follows.
a) The laundry appliance should be conveniently positioned in relation to other appliances and allow adequateaccess for maintenance.
b) Locations that restrict the use of the laundry appliance’s doors and other doors,furniture or utensils should beavoided.Some vertically hinged loading doors are reversible, i.e. capable of left- or right-hand hinge selection.
Clearance around the laundry appliance or within an enclosure shall be in accordance with the
manufacturer’s instructions regarding the supply of air, the method of venting and protection againstexcessive temperatures.
NOTE Where the laundry appliance is within an enclosure, ventilation openings should not be obstructed andease of appliance maintenance should be unimpaired.Both the ventilation and the exhaust should terminatedirectly to the outside atmosphere. Protective cladding, which is insulating material that can be specified by theappliance manufacturer and is fitted between the appliance case and any adjacent combustible material, canreduce the amount of clearance required.